Unicel S-1900 Circular Spin Filter Grid - 19 Inches filter-length_19 1/8 inches Nautilus NS and Nautilus Plus

Nautilus NS and Nautilus Plus NSP 60 square foot filters

This is an Aquador Winter Skimmer Lid Kit for aboveground Lomart style skimmers

and Low Water Sensor Problem

threaded shaft

This is a Generic Strainer Cover and Tank O-Ring O-510 replacement with dimensions for Hayward NorthStar SP4000 and SP4000X pumps from 2003 to 2007

Unicel S-1900 Circular Spin Filter Grid - 19 Inches filter-length_19 1/8 inches Nautilus NS and Nautilus PlusThis is a Unicel S 1900 Ciricular Spin Filter Grid, 19 Inches in diameter with a 2 1 2 inch center. This round grid FC 9910 is the correct replacement for the Unicel S 1900. This filter grid is made from heavy duty polyester. This grid has more pleats to improve filtering capacity.